Continuous cross-flow filtration equipment for hydrogenation catalyst

Abstract

The utility model relates to the field of filtering equipment, in particular to hydrogenation catalyst continuous cross-flow filtering equipment which comprises a filter cartridge used for installation and fixation and a connecting mechanism used for being connected with external equipment, and the connecting mechanism is installed on the filter cartridge. The filtering and separating mechanism is used for filtering a catalyst; the separating pressure adjusting mechanism is used for assisting the filtering and separating mechanism to provide disturbance force in the filtering process; and the separating dynamic mechanism is matched with the separating pressure adjusting mechanism to improve the disturbance effect. The separation dynamic mechanism is matched with the separation pressure adjusting mechanism, so that floating pressure and power of the separation pressure adjusting mechanism drive the top connector to vibrate through the separation dynamic mechanism, vibration force is provided for impurities under fluid impact, and the cross-flow filtering effect is improved.

Description

Technical Field

[0001] The utility model relates to the field of filtration equipment, in particular to a continuous cross-flow filtration equipment for hydrogenation catalysts. Background Art

[0002] The continuous cross-flow filtration equipment for hydrogenation catalysts is a device used for efficiently separating and recovering solid catalysts in the catalytic hydrogenation process. Its core adopts the cross-flow filtration technology. Through the spiral channel design, the raw material liquid flows at a high speed along the membrane surface, reducing the deposition of catalysts on the membrane surface, thereby realizing continuous filtration. This equipment usually consists of a stainless steel filter cylinder, a PE tube filter membrane, and a spiral flow guiding structure. The clear liquid penetrates through the membrane layer and is discharged, while the concentrated catalyst particles are recovered from the bottom. Its advantages lie in long-term operation and easy cleaning, but there are problems such as membrane fouling, material corrosion, and high energy consumption, which need to be improved through means such as material optimization, pretreatment processes, and intelligent monitoring.

[0003] In the prior art, the Chinese utility model with the comparative publication number CN211462745U discloses a continuous membrane cross-flow filter, which uses multiple layers of holes to solve the problem of high-pressure water flow pulling damage. However, it is found in the operation of such equipment that because the flow direction of the medium in the cross-flow filtration equipment is single, the situation of pulling damage and the inability of impurities to be separated in time under a single impact will occur. Summary of the Utility Model

[0004] The purpose of the present utility model is to provide a continuous cross-flow filtration equipment for hydrogenation catalysts to solve the above problems.

[0005] The present utility model realizes the above purpose through the following technical solutions:

[0006] A continuous cross-flow filtration equipment for hydrogenation catalysts includes a filter cylinder for installation and fixation and a connection mechanism for connecting external equipment. The connection mechanism is installed on the filter cylinder. It also includes a filtration and separation mechanism for filtering the catalyst, a separation pressure adjustment mechanism for assisting the filtration and separation mechanism to provide a disturbing force during the filtration process, and a separation dynamic mechanism for cooperating with the separation pressure adjustment mechanism to improve the disturbing effect.

[0007] The filtration and separation mechanism includes a separation membrane. A top connector is fixedly connected to the top of the separation membrane. The top of the top connector is connected to the water outlet pipe of the connection mechanism through a recovery pipe. The outer side of the top of the separation membrane is clamped with an inner oscillation ring of the separation pressure adjustment mechanism. The separation pressure adjustment mechanism further includes a top reset member, an impact plate, and an outer oscillation ring. The outer circular surface of the inner oscillation ring cooperates with the outer oscillation ring through an arc plate of the separation dynamic mechanism. Grooves for restricting the movement range of the arc plate are formed on both the inner oscillation ring and the outer oscillation ring. The top of the arc plate is connected to the impact plate through a pull rod. The top of the impact plate is connected to the inner top of the filter cartridge through a recovery pipe. The liquid inlet pipe is arranged between the impact plate and the inner oscillation ring and is formed on the filter cartridge.

[0008] Preferably: The separation dynamic mechanism further includes a follower block. The bottom of the pull rod is fixedly connected to the follower block. The follower block is rotatably connected to the arc plate through a pin shaft. The top of the pull rod is connected to the impact plate through a ball head.

[0009] Preferably: The groove formed on the inner oscillation ring corresponding to the arc plate is a first impact groove, and the groove formed on the outer oscillation ring corresponding to the arc plate is a second impact groove.

[0010] Preferably: The arc plate is an arc plate, and friction lines are formed on the end faces of the arc plate corresponding to the first impact groove and the second impact groove.

[0011] Preferably: The radian of the arc plate is 30° - 40°.

[0012] Preferably: The top reset member is a rectangular spring.

[0013] Preferably: The outer circular surface of the impact plate is cooperated with the filter cartridge through a rubber ring, and the up and down floating range of the impact plate is 0mm - 10mm.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. By using the separation pressure adjustment mechanism to cooperate with the liquid inlet pressure of the liquid inlet pipe, when the pressure fluctuates significantly, it will impact the top reset member, causing the top reset member to float upward. The upward float is used to adjust the liquid inlet pressure and provide reverse supplementary pressure when the top reset member resets, promoting the liquid flow stabilization effect. However, on the end face, it makes the liquid more disordered, thereby enhancing the impact of the subsequent pressure on the previous impurities, and thus improving the cross-flow filtration effect on the impurities;

[0016] 2. By using the separation dynamic mechanism to cooperate with the separation pressure adjustment mechanism, the floating pressure and power of the separation pressure adjustment mechanism drive the top connector to oscillate through the separation dynamic mechanism, thereby providing an oscillating force for the impurities under the impact of the fluid and improving the cross-flow filtration effect. Brief Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 It is a schematic structural diagram of a continuous cross-flow filtration device for a hydrogenation catalyst according to the present invention;

[0019] Figure 2 It is a schematic internal structure diagram of a continuous cross-flow filtration device for a hydrogenation catalyst according to the present invention;

[0020] Figure 3 It is a partial detailed view of the internal structure of a continuous cross-flow filtration device for a hydrogenation catalyst according to the present invention;

[0021] Figure 4 It is a schematic structural diagram of a separation pressure adjustment mechanism of a continuous cross-flow filtration device for a hydrogenation catalyst according to the present invention;

[0022] Figure 5 It is an exploded structural diagram of a separation pressure adjustment mechanism of a continuous cross-flow filtration device for a hydrogenation catalyst according to the present invention;

[0023] Figure 6 It is a schematic structural diagram of an arc plate of a continuous cross-flow filtration device for a hydrogenation catalyst according to the present invention;

[0024] Figure 7 It is a schematic structural diagram of the arc plate of a continuous cross-flow filtration device for a hydrogenation catalyst located at the bottom position;

[0025] Figure 8 It is a schematic structural diagram of the arc plate of a continuous cross-flow filtration device for a hydrogenation catalyst located at the top position.

[0026] The description of the reference numerals is as follows:

[0027] 1. Filter cartridge; 2. Connection mechanism; 3. Filtration and separation mechanism; 4. Separation pressure adjustment mechanism; 5. Separation dynamic mechanism; 21. Water outlet pipe; 22. Liquid inlet pipe; 23. Liquid outlet pipe; 24. Cleaning and sewage discharge pipe; 31. Separation membrane; 32. Top connector; 33. Recovery pipe; 41. Top reset part; 42. Impact plate; 43. External oscillation ring; 44. Internal oscillation ring; 51. Pull rod; 52. Follow-up block; 53. Arc plate; 54. First impact groove; 55. Second impact groove. Detailed implementation manners

[0028] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is the orientation or positional relationship based on the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0029] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.

[0030] The present utility model will be further described below with reference to the drawings:

[0031] As Figures 1-8 shown, a continuous cross-flow filtration device for a hydrogenation catalyst includes a filter cartridge 1 for installation and fixation and a connection mechanism 2 for connecting external devices. The connection mechanism 2 is installed on the filter cartridge 1. It further includes a filtration and separation mechanism 3 for filtering the catalyst, a separation pressure adjustment mechanism 4 for assisting the filtration and separation mechanism 3 to provide a disturbing force during the filtration process, and a separation dynamic mechanism 5 for cooperating with the separation pressure adjustment mechanism 4 to improve the disturbing effect.

[0032] The filtration and separation mechanism 3 includes a separation membrane 31. A top connector 32 is fixedly connected to the top of the separation membrane 31. The top of the top connector 32 is connected to the water outlet pipe 21 of the connection mechanism 2 through a recovery pipe 33. The outer side of the top of the separation membrane 31 is clamped with an inner oscillation ring 44 inside the separation pressure regulating mechanism 4. The separation pressure regulating mechanism 4 further includes a top reset member 41, an impact plate 42, and an outer oscillation ring 43. The outer circular surface of the inner oscillation ring 44 cooperates with the outer oscillation ring 43 through an arc plate 53 of the separation dynamic mechanism 5. Grooves for restricting the movement range of the arc plate 53 are formed on both the inner oscillation ring 44 and the outer oscillation ring 43. The top of the arc plate 53 is connected to the impact plate 42 through a pull rod 51. The top of the impact plate 42 cooperates with the inner top of the filter cartridge 1 through the recovery pipe 33. The liquid inlet pipe 22 is arranged between the impact plate 42 and the inner oscillation ring 44 and is formed on the filter cartridge 1.

[0033] In this embodiment, the separation dynamic mechanism 5 further includes a follower block 52. The bottom of the pull rod 51 is fixedly connected to the follower block 52. The follower block 52 is rotationally connected to the arc plate 53 through a pin shaft. The top of the pull rod 51 is connected to the impact plate 42 through a ball head. After the pull rod 51 is subjected to the pulling force of the top impact plate 42, it will drive the follower block 52 to float up and down, and then impact the first impact groove 54 on the inner oscillation ring 44 through the follower block 52 to provide oscillation for the inner oscillation ring 44 and the separation membrane 31.

[0034] In this embodiment, the groove formed on the inner oscillation ring 44 corresponding to the arc plate 53 is the first impact groove 54, and the groove formed on the outer oscillation ring 43 corresponding to the arc plate 53 is the second impact groove 55. The first impact groove 54 and the second impact groove 55 are used to limit the floating range of the arc plate 53, and then when the arc plate 53 reaches the limit position, a collision impact occurs to generate oscillation to improve the power for the separation of impurities.

[0035] In this embodiment, the arc plate 53 is an arc plate. Friction lines are formed on the end faces of the arc plate 53 corresponding to the first impact groove 54 and the second impact groove 55 to increase the resistance, and further improve the dispersion of the combined force during the sliding process.

[0036] In this embodiment, the radian of the arc plate 53 is 30° - 40°.

[0037] In this embodiment, the top reset member 41 is a rectangular spring.

[0038] In this embodiment, the outer circular surface of the impact plate 42 cooperates with the filter cartridge 1 through a rubber ring, and the up and down floating range of the impact plate 42 is 0 mm - 10 mm.

[0039] Working principle: The mixed liquid to be separated is transmitted to the inside of the filter cartridge 1 through the liquid inlet pipe 22. Since the separation membrane 31 inside the filter cartridge 1 is a cross-flow filtration membrane, after the medium is filtered and separated by the membrane, the separated liquid is transmitted upward through the inside of the separation membrane 31 and flows out from the water outlet pipe 21.

[0040] During the stable liquid inlet process of the liquid inlet pipe 22, the medium will be transmitted downward from the top of the arc-shaped plate 53. At this time, the part of the medium passing through the arc-shaped plate 53 and its own flow direction interfere with each other, so that the effect of increasing the cross force on the surface of the medium is achieved when the medium passes through the separation membrane 31 for filtration and separation. Furthermore, the impact separation of impurities during the cross-flow filtration process is improved. After filtration, the impurities are driven to be discharged from the liquid outlet pipe 23. During subsequent backwashing, the cleaning and sewage discharge pipe 24 is used for refined sewage discharge;

[0041] During the liquid inlet process of the liquid inlet pipe 22, the external medium is transmitted by the pump body, so the medium pressure is unstable. When the medium pressure is high, when it impacts between the impact plate 42 and the separation membrane 31, the pressure will squeeze the impact plate 42 to float upward. At this time, the impact plate 42 floating upward squeezes the top reset member 41, and the lower end of the impact plate 42 pulls the pull rod 51, the follower block 52, and the arc-shaped plate 53 to float upward as Figures 7 to 8 shown in the figure. At this time, the arc-shaped plate 53 turns upward, and the flow direction of the medium changes. At the same time, because the arc-shaped plate 53 reaches the top and impacts with the internal shock ring 44 and the external shock ring 43 to generate shock, the shock is transmitted to the separation membrane 31. Combined with the change of the flow direction of the external medium, the disturbance effect of the medium on the surface of the separation membrane 31 is improved, thereby improving the separation of impurities.

[0042] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A continuous cross-flow filtration device for a hydrogenation catalyst, comprising a filter cartridge (1) for installation and fixation and a connection mechanism (2) for connecting external devices, wherein the connection mechanism (2) is installed on the filter cartridge (1), and is characterized in that: It further includes a filtration and separation mechanism (3) for filtering the catalyst, a separation pressure adjustment mechanism (4) for assisting the filtration and separation mechanism (3) to provide a disturbing force during filtration, and a separation dynamic mechanism (5) for cooperating with the separation pressure adjustment mechanism (4) to improve the disturbing effect; The filtration and separation mechanism (3) includes a separation membrane (31). A top connector (32) is fixedly connected to the top of the separation membrane (31). The top of the top connector (32) is connected to the water outlet pipe (21) of the connection mechanism (2) through a recovery pipe (33). The outer side of the top of the separation membrane (31) is clamped with an inner oscillation ring (44) of the separation pressure adjustment mechanism (4). The separation pressure adjustment mechanism (4) further includes a top reset member (41), an impact plate (42), and an outer oscillation ring (43). The outer circumferential surface of the inner oscillation ring (44) cooperates with the outer oscillation ring (43) through an arc plate (53) of the separation dynamic mechanism (5). Grooves for restricting the movement range of the arc plate (53) are formed on both the inner oscillation ring (44) and the outer oscillation ring (43). The top of the arc plate (53) is connected to the impact plate (42) through a pull rod (51). The top of the impact plate (42) cooperates with the inner top of the filter cartridge (1) through the recovery pipe (33). The liquid inlet pipe (22) is arranged between the impact plate (42) and the inner oscillation ring (44) and is formed on the filter cartridge (1).

2. The continuous cross-flow filtration equipment for a hydrogenation catalyst according to claim 1, wherein: The separation dynamic mechanism (5) further includes a follower block (52). The bottom of the pull rod (51) is fixedly connected to the follower block (52). The follower block (52) is rotatably connected to the arc plate (53) through a pin shaft. The top of the pull rod (51) is connected to the impact plate (42) through a ball head.

3. The continuous cross-flow filtration equipment for a hydrogenation catalyst according to claim 2, wherein: The groove formed on the inner oscillation ring (44) corresponding to the arc plate (53) is a first impact groove (54), and the groove formed on the outer oscillation ring (43) corresponding to the arc plate (53) is a second impact groove (55).

4. The continuous cross-flow filtration equipment for a hydrogenation catalyst according to claim 3, characterized in that: The arc plate (53) is an arc plate. Friction lines are formed on the end faces of the arc plate (53) corresponding to the first impact groove (54) and the second impact groove (55).

5. A continuous cross-flow filtration device for a hydrogenation catalyst according to claim 4, characterized in that: The radian of the arc plate (53) is 30° - 40°.

6. The continuous cross-flow filtration equipment for a hydrogenation catalyst according to claim 1, wherein: The top reset member (41) is a rectangular spring.

7. The continuous cross-flow filtration equipment for a hydrogenation catalyst according to claim 1, wherein: The outer circumferential surface of the impact plate (42) cooperates with the filter cartridge (1) through a rubber ring, and the vertical floating range of the impact plate (42) is 0 mm - 10 mm.

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